optionally

• POS: Adverb
• HYPHEN: op=tion=al=ly

CIDE DICTIONARY

optionally, adv. 

 In an optional manner.  [1913 Webster]

ROGET THESAURUS

optionally

Choice

N choice, option, discretion, preoption, alternative, dilemma, embarras de choix, adoption, cooptation, novation, decision, election, political election (politics), selection, excerption, gleaning, eclecticism, excerpta, gleanings, cuttings, scissors and paste, pick, preference, prelation, opinion poll, survey, predilection, optional, discretional, eclectic, choosing, preferential, chosen, choice, optionally, at pleasure, either the one or the other, or at the option of, whether or not, once and for all, for one's money, by choice, by preference, in preference, rather, before.